Calibration utility for non-linear measurement system

Details Calibration utility for non-linear measurement system Calibration utility for non-linear measurement system

2006-11-09

2009-12-08

Rogers, David A. (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Fluid pressure

C073S001570, C073S001610, C073S001620

Reexamination Certificate

active

07628054

ABSTRACT:
A method and system for calibrating an analog sensor used in a digital measurement system is provided. The design comprises generating a precise pressure value set at multiple calibration points and supplying said precise pressure value set to an uncalibrated pressure sensor, detecting sensor changes for the uncalibrated pressure sensor based on each precise pressure value generated, polling an actual pressure reading associated with a sensor change for the uncalibrated pressure sensor for each calibration point, and establishing a mathematical relationship between measured value readings and actual pressure for the uncalibrated sensor. Establishing the mathematical relationship converts the uncalibrated sensor to a newly calibrated sensor. A known good sensor may be employed to enhance calibration reliability.

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